Cinematographic camera



AU@ l2, 1930. I i FISCHER 17,772,772

C INEMATOGRAPH I C CAMERA Filed Ag. s, 192s.

Patented Aug. 12,. 1930 v UNITED sTATEsJPATENT oFFAlcE OTTO FISCHER, F DRESDEN, GERMANY.; ASSIGNOR T0 THE FIRM: I C A, AKTIEN'- GESELLSCHAFT, OF DRESDEN, GERMANY cmmufrocmrnrc calamita'V appaiano 'alec ungut s, 192s, serial mi. 49,055,- and in cerma'y August 9, i924.

My invention refers vtoa cinema-camera4 which is operated by a motor device in which the spring and the driving mechanismgare located in' a casing/ By thus arranging the `said driving elements it is'rendered possible to considerably simplify the mechanism and also to reduce the volume of the-,apparatus to aminimum.l .v v

According to my invention this arrangement can be improved by fastening the regulator of the motor device on the driving shaft of the intermittent device which usually carries the fly wheel and lthe eqcentric causing the reciprocating movement of the film feeding member. In the case o f the fly wheel'being adapted at the same time'to serve as a regulator for the motor device, the greatest possible simplicity is attained. By arrangmg the said elements on the drive-shaft the 20 otherwise necessary means for transmission, which make the vapparatus expensive and I bulky can be dispensed with. The arrangement also effects a reduction ofthe necessary driving power because itdoes away with several gear wheelspand shafts. so that a smaller motor device will be sufficient. 'In the drawing- Figure 1 is an interior view of the device taken substantially on the line 1-1 of Figure 2; and

'Figure 2 is a section on the line 2--2 of Figure 1. a A i Referring more particularly to the drawing, the numeral l indicates the casing of the vcamera which is divided by a partition into two compartments A and B. The compartment A contains the entiredriving mechanism, while the compartment B receives the film holder C and the film guide 4 past which 40 the film' is fed forV exposure by the shutter mechanism 16.

Y The driving mechanism consists of a housing 7 secured to the rear wall of the casing 1 and containing the usual spring 6 which 45 constitutes the motor for operating the drive shaft 14. The housing 7. also has mounted for rot Ytion thereon the gear 5 which isconnected to the spring in any well known manner so that said spring may be wound by opera-ting the crank 35 which drives the shaft 50 36l upon which a gear 37.l is mounted, this Vlatter gear meshing with `thegear 5. Also.

meshing with the gear .5 is a small gear`8 mounted on the shaft 9. A large gear 10 is carried by the shaft 9l and engages the small gear 11 on the shaft 39.- On the same shaft with the gear 11 is a large gear 12 which drives the gear 13 mounted on the main shaft, 14. This latter shaft drives a worm 15 mounted on the shaft 18 and said worm operates 60 the shutter mechanism through the medium of the shaft 17.

The shaft 14 has thereon the eccentric or cam 19 which oscillates and reciprocates the film feeding member 20. This member is pro- 65 vided with a slot 21 at one end in which is engaged a pin 22 carried by the partition 2 so as .to suppert saidmember in position and form a pivot for its oscillations. The member is spaced from the partition 2 by means 70 of the disks 33 and 34. At the other end of y the member 20 the sameis provided with an offset extension or pawl 23 which, as the member 20 is operated, is projected throughv the wall of the guide 4 and also through an open- 75 i ing 24 in the Wall 24 to control the feeding of thellm which passes between said walls so that one film at a time is fed to the shutter for exposure. The film which is Within the holder 3 is mounted on feeding and take-up so rolls (not shown) of any desired and well known construction. y

The regulator for controlling the speed vof the shaft 14 includes a drum 27 supported by means of a bracket 26 which is `secured to the S5 partition by screws 25. On the drive shaft 14 there is mounted the plate 28 having pivots 29 at the ends thereof. Mounted on the pivots are the opposed arms 3l connected to the plate by means of springs 30 which nor- 00 mally tend to draw said armsvinwardly to- `by said driving means and mountedfor ward the axis of rotation of the plate 28.- movement on said' longitudinal partltlon, v

However, as this plate is 'rotated the censaid longitudinal partition havlng an opentrifugal force has a tendency to swing the ing connecting the chamber 1n wh1ch the freeends of the arms outwardly to fricdrlvmg means 1s arranged w1th the auxlllary tionally engage the brake shoes 82 with the chamber, and said feeder having an exteninner'surface of the drum 27, thus producing S1011 prolectlng through* said o pemng 1nto a braking action which will regulate the speed the allXlllaI'y Chamber and COaCtlng Wlth the of rotation of the shaft 14 which is under the Openings in the Walls 0f the transverse pary casing 1 is provided with a side cover plate influencey 0f the Spring 6 tition forA enga vement with the lm for a Thecompartment A has therein asupport feedlng 2 lCt10I1 t BIGO- 38 which forms a bearing for the shafts 14, In teStlmOny whereof I aX my S1 amr@ 36 and 39, as clearly shown in Figure 1. The OTTO FISQ R.

`which' may be removed if desired.

' What is claimed is: f v

1. In a cinematographic camera, a casing having av partition dividing the same into compartments, a film holder in one compartment, a spring motor in the other compartf ment, a driving shaft operated by said motor, a film feeding member also in'the latter compartment and-supported by said partition, said partition having an opening in which a portion of the feeder is movable for engagement with .the film, means on said shaft for imparting reciprocatingl and oscillating movements to said member to feed f the film in Vsaid holder, and a regulator also on said shaft forcontrolling the speed of rotation thereof. f

2. In a cinematographic camera, a casing having a partition dividing the same into compartments, a film holder in one compartment, a spring motor in the other compartment, a driving shaft operated by said motor, a combined reciprocatory and oscillatory vfilm feeding member also in the latter compartment and supported and guided in its movements upon said partition` an eccentric disk directlv mounted on said shaft f and directly engaging said feeding member for imparting reciprocating and oscillating movements to said member to feed the lm in said holder.'thesaid partition having an openlng therein in which a portion of the feeder is movable for engagement with the film. speed governing means for said shaft including a stationary drum', a plate carried v by said shaft, and braking elements pivoted to said plate and engageable with said drum tocontrol the speed of said shaft. 3.. In a cinematographic camera, a casing having a longitudinal partition dividing it into two main chambers, a film holder 'arranged 1n one of the main chambers, drivingy means arranged in the other main chamber, a double walled transverse partition forming a film guide and van'auxiliary chamber arranged in line with the, main chamber con# talnlng` the film holder, the walls of said guide Vhaving openings respectively connecting the film.guide with said first-mentioned main chamber and the auxiliary chamber with said film guide, and a feeder actuated mss t im 

